CDT520 series horn type loudspeakers unite advanced technology and application-driven engineering to bring better sound closer to a wide range of indoor and outdoor applications. Patented CoEntrant M/H transducers and unique innovations such as our Complex Conic horns combine to deliver natural sounding, intelligible speech over large areas. Wherever audiences and operators demand superior performance Renkus-Heinz loudspeakers are a wise choice for superior quality and performance.